Gardens of Tranquil Repose is a common Plane — Necros card from Doctor Who (WHO), collector number 583. Current market price: $0.28, TCGplayer market prices via Scryfall.
Suspended Animation — Whenever a creature dies, exile it. Its controller scries 1. Whenever chaos ensues, create X 3/3 black Dalek artifact creature tokens with menace, where X is one plus the number of cards exiled with Gardens of Tranquil Repose.